/** @file
GUID for UEFI WIN_CERTIFICATE structure.

Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution.  The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php

THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

@par Revision Reference:
GUID defined in UEFI 2.0 spec.
**/

#ifndef __EFI_WIN_CERTIFICATE_H__
#define __EFI_WIN_CERTIFICATE_H__

//
// _WIN_CERTIFICATE.wCertificateType
// 
#define WIN_CERT_TYPE_PKCS_SIGNED_DATA 0x0002
#define WIN_CERT_TYPE_EFI_PKCS115      0x0EF0
#define WIN_CERT_TYPE_EFI_GUID         0x0EF1

///
/// The WIN_CERTIFICATE structure is part of the PE/COFF specification.
///
typedef struct {
    ///
    /// The length of the entire certificate,  
    /// including the length of the header, in bytes.                                
    ///
    UINT32  dwLength;
    ///
    /// The revision level of the WIN_CERTIFICATE 
    /// structure. The current revision level is 0x0200.                                   
    ///
    UINT16  wRevision;
    ///
    /// The certificate type. See WIN_CERT_TYPE_xxx for the UEFI      
    /// certificate types. The UEFI specification reserves the range of 
    /// certificate type values from 0x0EF0 to 0x0EFF.                          
    ///
    UINT16  wCertificateType;
    ///
    /// The following is the actual certificate. The format of   
    /// the certificate depends on wCertificateType.
    ///
    /// UINT8 bCertificate[ANYSIZE_ARRAY];
    ///
} WIN_CERTIFICATE;

///
/// WIN_CERTIFICATE_UEFI_GUID.CertType
/// 
#define EFI_CERT_TYPE_RSA2048_SHA256_GUID \
{0xa7717414, 0xc616, 0x4977, { 0x94, 0x20, 0x84, 0x47, 0x12, 0xa7, 0x35, 0xbf } }

///
/// WIN_CERTIFICATE_UEFI_GUID.CertData
/// 
typedef struct {
    EFI_GUID  HashType;
    UINT8     PublicKey[256];
    UINT8     Signature[256];
} EFI_CERT_BLOCK_RSA_2048_SHA256;


///
/// Certificate which encapsulates a GUID-specific digital signature
///
typedef struct {
    ///
    /// This is the standard WIN_CERTIFICATE header, where
    /// wCertificateType is set to WIN_CERT_TYPE_UEFI_GUID. 
    ///                         
    WIN_CERTIFICATE   Hdr;
    ///
    /// This is the unique id which determines the 
    /// format of the CertData. .
    ///
    EFI_GUID          CertType;
    /// 
    /// The following is the certificate data. The format of
    /// the data is determined by the CertType. 
    /// If CertType is EFI_CERT_TYPE_RSA2048_SHA256_GUID,
    /// the CertData will be EFI_CERT_BLOCK_RSA_2048_SHA256 structure.
    ///
    UINT8            CertData[1];
} WIN_CERTIFICATE_UEFI_GUID;


///   
/// Certificate which encapsulates the RSASSA_PKCS1-v1_5 digital signature.
///  
/// The WIN_CERTIFICATE_UEFI_PKCS1_15 structure is derived from
/// WIN_CERTIFICATE and encapsulate the information needed to  
/// implement the RSASSA-PKCS1-v1_5 digital signature algorithm as  
/// specified in RFC2437.  
///  
typedef struct {
    ///
    /// This is the standard WIN_CERTIFICATE header, where 
    /// wCertificateType is set to WIN_CERT_TYPE_UEFI_PKCS1_15.                       
    ///
    WIN_CERTIFICATE Hdr;
    ///
    /// This is the hashing algorithm which was performed on the
    /// UEFI executable when creating the digital signature. 
    ///
    EFI_GUID        HashAlgorithm;
    ///
    /// The following is the actual digital signature. The   
    /// size of the signature is the same size as the key 
    /// (1024-bit key is 128 bytes) and can be determined by 
    /// subtracting the length of the other parts of this header
    /// from the total length of the certificate as found in 
    /// Hdr.dwLength.                               
    ///
    /// UINT8 Signature[];
    ///
} WIN_CERTIFICATE_EFI_PKCS1_15;

extern EFI_GUID gEfiCertTypeRsa2048Sha256Guid;

#endif
